At BRS, every order ships free using a mix of economy shipping methods including, USPS, SurePost and UPS Ground. Your order will arrive within 2-7 days, depending on your vicinity to Minneapolis. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for free shipping.*

$4.99 Upgraded 1-3 Day Shipping (Free over $249)

Your order will be upgraded from economy methods to ensure 1-3 business day delivery using UPS 3 day select and UPS ground regardless of weight or size. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for upgraded shipping. See map below for transit times.*

*Click here to view detailed shipping information.
* Orders shipped same day when placed by 3:30pm CST, Monday through Friday. Orders placed after will ship the following business day. Example: order after 3:30pm CST on Monday, it will ship Tuesday. Order after 3:30pm CST on Friday, it will ship Monday.

BRS Felt Filter Sock with Plastic Ring

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Quick Overview

Why does BRS recommend this?

Felt filter socks give the best qualities of trapping free floating debris to give your tanks water that crystal clear appearance. Felt filter socks with the plastic rings make replacement quick and easy, and most sumps will readily accept the BRS felt filter sock. In most cases we will always put felt filter socks in our sumps.

Filter Socks are used on overflows to remove small floating particles from aquarium water. This can dramatically improve water quality and reduce maintenance on filters that would otherwise become clogged.

Felt Filter Sock is better at removing particles than mesh but can clog faster. Plastic ring fits common sump holders.

Felt filter socks give the best qualities of trapping free floating debris to give your tanks water that crystal clear appearance. Felt filter socks with the plastic rings make replacement quick and easy, and most sumps will readily accept the BRS felt filter sock. In most cases we will always put felt filter socks in our sumps.

Filter Socks are used on overflows to remove small floating particles from aquarium water. This can dramatically improve water quality and reduce maintenance on filters that would otherwise become clogged.

Felt Filter Sock is better at removing particles than mesh but can clog faster. Plastic ring fits common sump holders.

BRS Felt Filter Sock with Plastic Ring

At BRS, every order ships free using a mix of economy shipping methods including, USPS, SurePost and UPS Ground. Your order will arrive within 2-7 days, depending on your vicinity to Minneapolis. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for free shipping.*

$4.99 Upgraded 1-3 Day Shipping (Free over $249)

Your order will be upgraded from economy methods to ensure 1-3 business day delivery using UPS 3 day select and UPS ground regardless of weight or size. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for upgraded shipping. See map below for transit times.*

*Click here to view detailed shipping information.
* Orders shipped same day when placed by 3:30pm CST, Monday through Friday. Orders placed after will ship the following business day. Example: order after 3:30pm CST on Monday, it will ship Tuesday. Order after 3:30pm CST on Friday, it will ship Monday.

Ships today
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5h 57m

Free economy shipping on every order!

At BRS, every order ships free using a mix of economy shipping methods including, USPS, SurePost and UPS Ground. Your order will arrive within 2-7 days, depending on your vicinity to Minneapolis. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for free shipping.*

$4.99 Upgraded 1-3 Day Shipping (Free over $249)

Your order will be upgraded from economy methods to ensure 1-3 business day delivery using UPS 3 day select and UPS ground regardless of weight or size. Place your order by 3:30 PM CST Monday through Friday and we'll ship it the same day. This offer is only available to the contiguous USA. Frozen foods and post office boxes do not qualify for upgraded shipping. See map below for transit times.*

*Click here to view detailed shipping information.
* Orders shipped same day when placed by 3:30pm CST, Monday through Friday. Orders placed after will ship the following business day. Example: order after 3:30pm CST on Monday, it will ship Tuesday. Order after 3:30pm CST on Friday, it will ship Monday.

Can't Beat EmBy DrChopon 12/8/2016

DrChop would recommend this product to a friend

I bought the 4"x8" to use in my diy 5.5g sump/refugium I built for my JBJ 28g Nano Cube...These things are PERFECT! The fact that the stand wouldn't accommodate much for a sump, leading me to use a 5.5g glass tank, left me scrambling for the right felt sock. These are perfect in length, more rigid than the typical socks, so they hold upright much better. Ordering a few more now to make swaps and cleanings seamless. Another top quality item from BRS

Favorite SocksBy Ericon 12/7/2016

Eric would recommend this product to a friend

The outer surface is singed which makes the socks hold up better to repeated rinsing/washing

They work.By LiveBait58on 10/22/2016

LiveBait58 would recommend this product to a friend

Nice socks that work great and hold up well in the washer. I'll continue to buy them.

Awesome SocksBy Chadon 10/17/2016

Chad would recommend this product to a friend

Great socks but the plastic ring scratches the hell out of my ankle. :)
Seriously though they work wonders at keeping stuff from recirculating in the tank and keep my water polished. Just remember to change them out often. I got 3 sets for ease of use.

Easy to clean, holds up great in the wash!By Josephon 10/2/2016

Joseph would recommend this product to a friend

Filters great,

Great QualityBy Danon 9/9/2016

Dan would recommend this product to a friend

These are a great quality filter sock and you can really feel it when you get them in your hand. They are lasting me a long time and have survived multiple washes in the washing machine.

Awesome ProductBy Markon 8/9/2016

Mark wouldn't recommend this product to a friend

Easy to clean, holds up great in the wash!

good product no problemBy sodon 7/3/2016

sod would recommend this product to a friend

great on line store fair prices

Great sockBy Chrison 5/28/2016

Chris would recommend this product to a friend

Well made. easy to clean. I mistakenly ordered the 8" sock and it was a little small. I returned it for the 14" and it works great.

sockBy markon 5/6/2016

mark would recommend this product to a friend

Like how this is made and priced better then the name brand ones. I've been using will definitely order more.

Eexcellent Filter SockBy Daveon 4/21/2016

Dave would recommend this product to a friend

Filters great, plastic ring fits my Trigger Sump better than the supplied sock, holds up well in the wash, good price.

Easy to clean!By Tyleron 4/21/2016

Tyler would recommend this product to a friend

All of the filter socks I have purchased from lfs are hard to turn inside out and really clean. I only use the BRS filter socks now for that very reason. They are very easy to give a good cleaning to.

Would the 4" be compatible as replacements for the socks that come with the CADLights SAIO series?

Question by: Lauren on Mar 7, 2016 7:53:00 AM

Great question,
We are not familiar with the CAD lights sock size. As long as the hole for the filter socks is 4" exactly our filter socks will work great! Feel free to let us know if you have any further questions!

What is the inside diameter of the plastic ring for each of the sock sizes?

Question by: Mark Brown on Jan 18, 2016 8:37:00 PM

Great question!
These filter socks have a lip which makes the inside diameter not very important for measurement. These will fit inside of a 4" diameter hole perfectly however! Feel free to let us know if you have any further questions!

Hello would this fit the reefer 250? Tried other 4 inch ring but no luck so far.

Question by: Carlos on Feb 4, 2016 12:29:00 PM

Great question!
This will not work in the red sea reefer tanks unfortunately. The only socks we are aware of the if the socks directly from Red Sea. Feel free to let us know if you have any further questions!

Is it acceptable/advisable to put bio-media in the socks such as Seachem Matrix or Brightwell Aquatics xPort Bio?

Question by: John Hildebrant on Jul 10, 2016 11:07:00 AM

Hi John,
You can put any type of media you choose into the filter socks, however for a media sock, we would suggest using the mesh socks over the felt, since little particles of media, like getting stuck in the felt socks and become a bit harder to clean over time. The mesh socks handle loose media much better while allowing for more flow through them. The felt socks are best for water polishing.

I've been using the 8" socks with good results - their also very durable and machine wash well.

1) Is using bleach necessary when machine washing?

2) What's the best way to tell when these socks need to be replaced (because of age/wear and no longer effective)?

3) If I wait too long will that contribute to an increase in nitrates?

Thanks,
Larry

Question by: Larry on Jun 12, 2014 5:31:00 AM

Hi Larry,
1) It isn't necessary (many people just use straight water) but bleach does a very good job of breaking down organics.
2)If they have holes worn thru them or if the stitching starts to come apart would be when I would start to worry about them :-)
3)If you leave them in the tank to long it won't be as effective. It is more of an opportunity cost, by leaving the sock in for too long you give a chance for detritus to contribute to the nutrients in the tank, whereas if you had changed it out you would have removed it from the tank before giving it the opportunity. In the end, there won't be any more nitrates then could have existed without it, but you missed your chance to prevent them if you don't change them.

How often do you normally recommend you change the filter socks? what is the best method to clean the socks? if soaking - in what solution?

Question by: Don on Nov 19, 2013 5:11:00 AM

Hey Don,
The more often you change them the better, that way you can remove the solids before they continue to break down and add additional nutrients to your water column. You want to avoid soaps when cleaning them but its pretty common for people to use unscented household bleach in water. Be sure to rinse them and all them to dry completely.

Would the 4" be compatible as replacements for the socks that come with the CADLights SAIO series?

Question by: Lauren on Mar 7, 2016 7:53:00 AM

Great question,
We are not familiar with the CAD lights sock size. As long as the hole for the filter socks is 4" exactly our filter socks will work great! Feel free to let us know if you have any further questions!

What is the inside diameter of the plastic ring for each of the sock sizes?

Question by: Mark Brown on Jan 18, 2016 8:37:00 PM

Great question!
These filter socks have a lip which makes the inside diameter not very important for measurement. These will fit inside of a 4" diameter hole perfectly however! Feel free to let us know if you have any further questions!

Hello would this fit the reefer 250? Tried other 4 inch ring but no luck so far.

Question by: Carlos on Feb 4, 2016 12:29:00 PM

Great question!
This will not work in the red sea reefer tanks unfortunately. The only socks we are aware of the if the socks directly from Red Sea. Feel free to let us know if you have any further questions!

Is it acceptable/advisable to put bio-media in the socks such as Seachem Matrix or Brightwell Aquatics xPort Bio?

Question by: John Hildebrant on Jul 10, 2016 11:07:00 AM

Hi John,
You can put any type of media you choose into the filter socks, however for a media sock, we would suggest using the mesh socks over the felt, since little particles of media, like getting stuck in the felt socks and become a bit harder to clean over time. The mesh socks handle loose media much better while allowing for more flow through them. The felt socks are best for water polishing.

I've been using the 8" socks with good results - their also very durable and machine wash well.

1) Is using bleach necessary when machine washing?

2) What's the best way to tell when these socks need to be replaced (because of age/wear and no longer effective)?

3) If I wait too long will that contribute to an increase in nitrates?

Thanks,
Larry

Question by: Larry on Jun 12, 2014 5:31:00 AM

Hi Larry,
1) It isn't necessary (many people just use straight water) but bleach does a very good job of breaking down organics.
2)If they have holes worn thru them or if the stitching starts to come apart would be when I would start to worry about them :-)
3)If you leave them in the tank to long it won't be as effective. It is more of an opportunity cost, by leaving the sock in for too long you give a chance for detritus to contribute to the nutrients in the tank, whereas if you had changed it out you would have removed it from the tank before giving it the opportunity. In the end, there won't be any more nitrates then could have existed without it, but you missed your chance to prevent them if you don't change them.

How often do you normally recommend you change the filter socks? what is the best method to clean the socks? if soaking - in what solution?

Question by: Don on Nov 19, 2013 5:11:00 AM

Hey Don,
The more often you change them the better, that way you can remove the solids before they continue to break down and add additional nutrients to your water column. You want to avoid soaps when cleaning them but its pretty common for people to use unscented household bleach in water. Be sure to rinse them and all them to dry completely.

Reviews

Can't Beat EmBy DrChop on 12/8/2016

DrChop would recommend this product to a friend

I bought the 4"x8" to use in my diy 5.5g sump/refugium I built for my JBJ 28g Nano Cube...These things are PERFECT! The fact that the stand wouldn't accommodate much for a sump, leading me to use a 5.5g glass tank, left me scrambling for the right felt sock. These are perfect in length, more rigid than the typical socks, so they hold upright much better. Ordering a few more now to make swaps and cleanings seamless. Another top quality item from BRS

Favorite SocksBy Eric on 12/7/2016

Eric would recommend this product to a friend

The outer surface is singed which makes the socks hold up better to repeated rinsing/washing

They work.By LiveBait58 on 10/22/2016

LiveBait58 would recommend this product to a friend

Nice socks that work great and hold up well in the washer. I'll continue to buy them.

Awesome SocksBy Chad on 10/17/2016

Chad would recommend this product to a friend

Great socks but the plastic ring scratches the hell out of my ankle. :)
Seriously though they work wonders at keeping stuff from recirculating in the tank and keep my water polished. Just remember to change them out often. I got 3 sets for ease of use.

Easy to clean, holds up great in the wash!By Joseph on 10/2/2016

Joseph would recommend this product to a friend

Filters great,

Great QualityBy Dan on 9/9/2016

Dan would recommend this product to a friend

These are a great quality filter sock and you can really feel it when you get them in your hand. They are lasting me a long time and have survived multiple washes in the washing machine.

Awesome ProductBy Mark on 8/9/2016

Mark wouldn't recommend this product to a friend

Easy to clean, holds up great in the wash!

good product no problemBy sod on 7/3/2016

sod would recommend this product to a friend

great on line store fair prices

Great sockBy Chris on 5/28/2016

Chris would recommend this product to a friend

Well made. easy to clean. I mistakenly ordered the 8" sock and it was a little small. I returned it for the 14" and it works great.

sockBy mark on 5/6/2016

mark would recommend this product to a friend

Like how this is made and priced better then the name brand ones. I've been using will definitely order more.

Eexcellent Filter SockBy Dave on 4/21/2016

Dave would recommend this product to a friend

Filters great, plastic ring fits my Trigger Sump better than the supplied sock, holds up well in the wash, good price.

Easy to clean!By Tyler on 4/21/2016

Tyler would recommend this product to a friend

All of the filter socks I have purchased from lfs are hard to turn inside out and really clean. I only use the BRS filter socks now for that very reason. They are very easy to give a good cleaning to.

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